Bitrate prober and paced sender improvements

webrtc/modules/pacing/bitrate_prober_unittest.cc

Index: webrtc/modules/pacing/bitrate_prober_unittest.cc
diff --git a/webrtc/modules/pacing/bitrate_prober_unittest.cc b/webrtc/modules/pacing/bitrate_prober_unittest.cc
index 9e38220e01287a1b4f21e222abfbce5172253ef6..ce63781e6871b01604e3eef4344a5d9bf9f57582 100644
--- a/webrtc/modules/pacing/bitrate_prober_unittest.cc
+++ b/webrtc/modules/pacing/bitrate_prober_unittest.cc
@@ -65,6 +65,7 @@ TEST(BitrateProberTest, DoesntProbeWithoutRecentPackets) {
   prober.OnIncomingPacket(300000, 1000, now_ms);
   EXPECT_TRUE(prober.IsProbing());
   EXPECT_EQ(0, prober.TimeUntilNextProbe(now_ms));
+  prober.PacketSent(now_ms, 1000);

[stefan-webrtc, 2016/07/29 07:12:07]

Did you add this to test the inactivity threshold?

[Irfan, 2016/08/01 18:29:47]

Yes, this is necessary (and makes sense in the flow) for the test with the
changes in TimeUntilNextProbe().

   // Let time pass, no large enough packets put into prober.
   now_ms += 6000;
   EXPECT_EQ(-1, prober.TimeUntilNextProbe(now_ms));